Recent research shows how the brain rewires itself for multitasking.
For decades, cognitive neuroscience has offered a consistent account of skill acquisition. When a person first encounters a complex task, the prefrontal cortex, the brain's decision-making control center, must work rigorously to interpret incoming information and guide choices. This reliance on the prefrontal cortex produces what researchers term as a "frontal bottleneck," a processing constraint that explains why novices find it difficult to perform a new task while attending to anything else.
What has remained far less understood is what happens to the brain after this initial struggle, once a skill has been practiced not for hours, but for months. A recent study by researchers at Lehigh University and Georgetown University addresses this gap directly, and in doing so, challenges a foundational assumption in learning science. They found that after extensive practice of a visual task, the visual areas in the back of the brain can execute the task automatically without the need for the prefrontal cortex.
Spotlight Recipient
Patrick Cox
Assistant professor